Background: Biological motions, that is, the movements of humans and other vertebrates, are characterized by dynamic regularities that reflect the structure and the control schemes of the musculo-skeletal system. Early studies on the development of the visual perception of biological motion showed that infants after three months of age distinguished between biological and non-biological locomotion.
Methodology/principal Findings: Using single point-light motions that varied with respect to the "two-third-power law" of motion generation and perception, we observed that four-day-old human neonates looked longer at non-biological motions than at biological motions when these were simultaneously presented in a standard preferential looking paradigm.
Conclusion/significance: This result can be interpreted within the "violation of expectation" framework and can indicate that neonates' motion perception - like adults'-is attuned to biological kinematics.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1779622 | PMC |
| http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0000186 | PLOS |
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